Annotation of 2002/css-validator/about.html.en, revision 1.5
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2: <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
3: "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
4: <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
5: <head>
6: <title>About the W3C CSS Validation Service</title>
7: <link rev="made" href="mailto:www-validator-css@w3.org" />
8: <link rev="start" href="./" title="Home Page" />
9: <style type="text/css" media="all">
1.2 ot 10: @import "style/base.css";
11: @import "style/docs.css";
1.1 ot 12: </style>
1.5 ! ot 13: <meta name="revision" content="$Id: about.html.en,v 1.4 2006/12/06 01:14:54 ot Exp $" />
1.1 ot 14: </head>
15:
16: <body>
17: <div id="banner">
18: <h1 id="title"><a href="http://www.w3.org/"><img height="48" alt="W3C" id="logo" src="http://www.w3.org/Icons/WWW/w3c_home_nb" /></a>
19: <a href="./"><img src="images/css_validation_service.png" alt="CSS Validation Service" /></a></h1>
20: </div>
21:
22: <h2>About the CSS Validator</h2>
23:
24: <h3 id="TableOfContents">Table of contents</h3>
25: <div id="toc">
26: <ol>
27: <li>About this Service
28: <ol>
29: <li><a href="#what">What is this? Do I need it?</a></li>
30: <li><a href="#help">The explanation above is incomprehensible! Help!</a></li>
31: <li><a href="#reference">So, this is the authority on what is correct CSS and what isn't?</a></li>
32: <li><a href="#free">How much does it cost?</a></li>
33: <li><a href="#who">Who wrote this tool? Who maintains it?</a></li>
34: <li><a href="#contact">How do I contact the authors? Report a bug?</a></li>
35: <li><a href="#participate">Can I help?</a></li>
36: </ol>
37: </li>
38: <li>Developers' corner
39: <ol>
40: <li><a href="#code">What is the CSS Validator written in? Is the source available somewhere?</a></li>
41: <li><a href="#install">Can I install and run the CSS Validator myself?</a></li>
42: <li><a href="#api">Can I build an application upon this validator? Is there an API?</a></li>
43: </ol>
44: </li>
45: </ol>
46: </div><!-- toc -->
47: <h3 id="about">About this Service</h3>
48:
49: <h4 id="what">What is this? Do I need it?</h4>
50:
51: <p>The W3C CSS Validation Service is a free software created by the W3C
52: to help Web designers and Web developers check Cascading Style Sheets (CSS).
53: It can be used on this <a href="./">free service</a> on the web, or downloaded
54: and used either as a java program, or as a java servlet on a Web server.</p>
55:
56: <p>Do <em>you</em> need it? If you are a Web developer or a Web designer, this
57: tool will be an invaluable ally. Not only will it compare your style sheets to the
58: CSS specifications, helping you find errors, typos, or incorrect uses of CSS, it will
59: also tell you when your CSS poses some risks in terms of usability.</p>
60:
61: <h4 id="help">The explanation above is incomprehensible! Help!</h4>
62: <p>Most documents on the Web are written in a computer language called HTML. This language
63: can be used to create pages with structured information, links, and multimedia objects. For
64: color, text, and layout, HTML uses a styling language called CSS, short for "Cascading Style Sheets".
65: What this tool does is help people authoring CSS check, and fix if necessary, their CSS Style Sheets.</p>
66:
67: <h4 id="reference">So, this is the authority on what is correct CSS and what isn't?</h4>
68: <p>No. It is a helpful and reliable tool, but a software tool, and like every software, it has some
69: <a href="http://www.w3.org/Bugs/Public/buglist.cgi?product=CSSValidator">bugs and issues</a>.
70: The actual reference on Cascading Style Sheets are the <a href="http://www.w3.org/Style/CSS/#specs">CSS
71: Specifications</a>.</p>
72:
73: <h4 id="free">How much does it cost?</h4>
74: <p>Nothing. The service is free. The source is <a href="DOWNLOAD.html">open</a> and you are free
75: to download it, use it, modify it, distribute it,
76: and <a href="http://www.w3.org/Consortium/Legal/copyright-software">more</a>.
77: If you really like it, you are welcome to <a href="#participate">join the project</a> or donate to W3C via the
78: <a href="http://www.w3.org/Consortium/sup">W3C supporters program</a>, but nobody forces you to.</p>
79:
80: <h4 id="who">Who wrote this tool? Who maintains it?</h4>
81: <p>W3C maintains and hosts the tool, thanks to the work and contributions by W3C staff,
82: volunteer developers and translators. See the <a href="thanks.html">credits and acknowledgments page</a>
83: for details. <a href="#participate">You too can help</a>.</p>
84:
85: <h4 id="participate">Can I help?</h4>
86: <p>Of course. If you are a java programmer, you can help the CSS Validator project by
87: checking out the <a href="#code">code</a>,
88: adopting and fixing <a href="http://www.w3.org/Bugs/Public/buglist.cgi?product=CSSValidator">bugs</a>,
89: or helping build new features.</p>
90: <p>But you do not need to be a coder to help build and maintain this tool: you can also help improve the
91: documentation, participate in translating the validator in your language, or subscribe to the
92: <a href="http://lists.w3.org/Archives/Public/www-validator-css/">mailing-list</a> and discuss about the tool
93: or help other users.</p>
94:
95: <h4 id="contact">Any other question?</h4>
96: <p>If you have any question regarding CSS or the CSS validator, check out the available
97: <a href="Email">mailing-lists and forums</a>. But before that, make sure that your question
98: or comment is not covered already by the <a href="http://www.websitedev.de/css/validator-faq">CSS Validator
99: <acronym title="Frequently Asked Questions">FAQ</acronym> document</a>.</p>
100:
101:
102: <h3 id="dev">Developers' corner</h3>
103: <h4 id="code">What is the CSS Validator written in? Is the source available somewhere?</h4>
104: <p>The W3C CSS validator is written using the java language, and yes, its source
105: is available, using CVS: you can
106: <a href="http://dev.w3.org/cvsweb/2002/css-validator/">browse the code online</a>
107: or follow the instructions there to download the whole source tree. For a quick
108: overview of the classes used in the CSS Validator code, check out the
109: <a href="README.html">README</a> file.</p>
110:
111: <h4 id="install">Can I install and run the CSS Validator myself?</h4>
112: <p>It is possible to download and install the CSS validator, and to run it either from the command line, or
113: as a servlet in a Web server. Read the <a href="RUN.html">instructions</a> for installation and use.</p>
114:
115: <h4 id="api">Can I build an application upon this validator? Is there an API?</h4>
1.4 ot 116: <p>Yes, and <a href="api.html">yes</a>. The CSS Validator has a (RESTful) <a href="api.html">SOAP interface</a>
1.1 ot 117: which should make it reasonably easy to build applications (Web or otherwise) upon it. Good manners and
118: respectful usage of shared resources are of course customary: make sure your applications sleep() between
119: calls to the validator, or install and run your own instance of the validator.</p>
120:
121: <ul class="navbar" id="menu">
122: <li><strong><a href="./" title="Home page for the W3C CSS Validation Service">Home</a></strong> <span class="hideme">|</span></li>
1.5 ! ot 123: <li><a href="documentation.html" title="Documentation for the W3C CSS Validation Service">Documentation</a> <span class="hideme">|</span></li>
! 124: <li><a href="DOWNLOAD.html" title="Download the CSS validator">Download</a> <span class="hideme">|</span></li>
! 125: <li><a href="Email.html" title="How to provide feedback on this service">Feedback</a> <span class="hideme">|</span></li>
! 126: <li><a href="thanks.html" title="Credits and Acknowlegments">Credits</a><span class="hideme">|</span></li>
1.1 ot 127:
128: </ul>
129:
1.3 ot 130: <ul id="lang_choice">
1.5 ! ot 131: <li><a href="about.html.de"
! 132: lang="de"
! 133: xml:lang="de"
! 134: hreflang="de"
! 135: rel="alternate">Deutsch</a></li>
1.3 ot 136: <li><a href="about.html.en"
1.5 ! ot 137: lang="en"
! 138: xml:lang="en"
1.3 ot 139: hreflang="en"
140: rel="alternate">English</a> </li>
1.5 ! ot 141: <li><a href="about.html.es"
! 142: lang="es" xml:lang="es" hreflang="es"
! 143: rel="alternate">Español</a></li>
1.3 ot 144: <li><a href="about.html.fr"
145: lang="fr"
146: xml:lang="fr"
147: hreflang="fr"
148: rel="alternate">Français</a> </li>
149: <li><a href="about.html.it"
150: lang="it"
151: xml:lang="it"
152: hreflang="it"
153: rel="alternate">Italiano</a> </li>
1.5 ! ot 154: <li><a href="about.html.nl"
! 155: lang="nl"
! 156: xml:lang="nl"
! 157: hreflang="nl"
! 158: rel="alternate">Nederlands</a> </li>
1.3 ot 159: <li><a href="about.html.ja"
160: lang="ja"
161: xml:lang="ja"
162: hreflang="ja"
163: rel="alternate">日本語</a> </li>
164: <li><a href="about.html.pl-PL"
165: lang="pl"
166: xml:lang="pl"
167: hreflang="pl"
168: rel="alternate">Polski</a> </li>
169: <li><a href="about.html.zh-cn"
170: lang="zh-hans"
171: xml:lang="zh-hans"
172: hreflang="zh-hans"
173: rel="alternate">中文</a></li>
174: </ul>
175:
176:
1.5 ! ot 177:
1.1 ot 178: <p id="activity_logos">
179: <a href="http://www.w3.org/QA/" title="W3C's Quality Assurance Activity, bringing you free Web quality tools and more"><img src="http://www.w3.org/QA/2002/12/qa-small.png" alt="QA" /></a><a href="http://www.w3.org/Style/CSS/learning" title="Learn more about Cascading Style Sheets"><img src="images/woolly-icon" alt="CSS" /></a>
180: </p>
181:
182: <p id="support_logo">
183: Support this tool, become a<br />
184: <a href="http://www.w3.org/Consortium/supporters"><img src="http://www.w3.org/Consortium/supporter-logos/csupporter.png" alt="W3C Supporter" /></a>
185: </p>
186:
187: <p class="copyright">
188: <a rel="Copyright" href="http://www.w3.org/Consortium/Legal/ipr-notice#Copyright">Copyright</a> © 1994-2006
189: <a href="http://www.w3.org/"><acronym title="World Wide Web Consortium">W3C</acronym></a>®
190:
191: (<a href="http://www.csail.mit.edu/"><acronym title="Massachusetts Institute of Technology">MIT</acronym></a>,
192: <a href="http://www.ercim.org/"><acronym title="European Research Consortium for Informatics and Mathematics">ERCIM</acronym></a>,
193: <a href="http://www.keio.ac.jp/">Keio</a>),
194: All Rights Reserved.
195: W3C <a href="http://www.w3.org/Consortium/Legal/ipr-notice#Legal_Disclaimer">liability</a>,
196: <a href="http://www.w3.org/Consortium/Legal/ipr-notice#W3C_Trademarks">trademark</a>,
197: <a rel="Copyright" href="http://www.w3.org/Consortium/Legal/copyright-documents">document use</a>
198:
199: and <a rel="Copyright" href="http://www.w3.org/Consortium/Legal/copyright-software">software licensing</a>
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205: </p>
206:
207:
208: </body>
209:
210: </html>
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